Features:

• Stainless steel lead screw + brass nut, rustproof and long service life.
• Smooth moving, low friction, high rigidity and long working life.
• 3D engraving machine lead screw 500mm length with nut.
• Applies to: Widely used in 3D Printer, stepper motor, machine tools, and other equipment.

Specification:

Nut

• Color: Silver
• Screw Material: Stainless Steel
• Nut Material: Brass
• Diameter: 8mm
• Nut Diameter: 22mm

Lead Screw

• Length: 500mm
• Lead: 2mm/0.078in (nut revolution movement 2mm)
• Type: Vertical
• Lead Screw's Lead: 2mm

Pillow Bearing

• Inner Diameter: 8mm
• Outside Diameter: 21mm
• Total Size: 55 x 28 x 13mm
• Mounting Hole Diameter : 5mm
• Holes Centre Distance : 44mm

Accessories:

• 1 pcs  500mm*8mm Dia Lead Screw 2mm
• 1 pcs 5x8mm D19L25 Flexible Shaft Coupling
• 2 pcs 8mm Pillow Block Mounted Bearing KP08 
• 1 pcs  Nut houssing